You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

User profile for user: porkchop1973
porkchop1973 Author
User level: Level 1
4 points

Mouse malfunctions when external monitor is plugged in to MacBook Air

I have a MacBook Air (2015). The screen size is small, so I have purchased a Samsung external monitor so I can see my clearly. However whenever I connect the monitor, the mouse cursor goes crazy and makes the monitor unusable.


The cursor enlarges and bolts all over the external screen.


When I disconnect the monitor, my bluetooth mouse and trackpad mouse work fine.


Can anyone explain this and advise me if there is a way to fix it please?

Thanks


Posted on Sep 24, 2020 1:42 AM

Reply
Question marked as Top-ranking reply
User profile for user: Alwayswantingtohelp1
Alwayswantingtohelp1
User level: Community Specialist

Posted on Sep 30, 2020 2:37 PM

Hello porkchop1973,


Thank you for using Apple Support Communities!


We understand from your post that your mouse is all over the place when using your external monitor. Make sure the monitor you have is compatible with your MacBook Air. This article will tell you the types of displays that can be used with each Mac model:


Use external monitors with your Mac - Apple Support


Also check the manufacturers website and make sure the monitor is compatible with macOS.


Best Regards.

View in context

Similar questions

1 reply
Question marked as Top-ranking reply
User profile for user: Alwayswantingtohelp1
Alwayswantingtohelp1
User level: Community Specialist

Sep 30, 2020 2:37 PM in response to porkchop1973

Hello porkchop1973,


Thank you for using Apple Support Communities!


We understand from your post that your mouse is all over the place when using your external monitor. Make sure the monitor you have is compatible with your MacBook Air. This article will tell you the types of displays that can be used with each Mac model:


Use external monitors with your Mac - Apple Support


Also check the manufacturers website and make sure the monitor is compatible with macOS.


Best Regards.

Reply

Mouse malfunctions when external monitor is plugged in to MacBook Air

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.
Learn more Sign up